* Loss of Power Steering Assist: The most immediate effect will be a significant reduction or complete loss of power steering assist. This will make steering the truck extremely difficult, especially at low speeds. It will require considerably more effort to turn the wheel.
* Damage to the Power Steering Pump: Power steering pumps are designed to work under a certain pressure. A leak in the pressure hose drastically reduces that pressure. The pump may have to work harder to compensate, potentially leading to overheating and eventual failure. This can be a costly repair.
* Damage to the Power Steering Rack and Pinion: Similar to the pump, the rack and pinion may be damaged due to insufficient pressure or fluid.
* Low Power Steering Fluid Level: The obvious result is a continually decreasing level of power steering fluid in the reservoir. Running the power steering system low on fluid will exacerbate the above problems and could lead to catastrophic failure.
* Steering System Failure: In a worst-case scenario, complete failure of the steering system could occur, leaving you with no control over the vehicle's direction. This is extremely dangerous.
What to do immediately:
1. Stop driving the vehicle: Continuing to drive with a power steering leak will only worsen the problem.
2. Locate the leak: Pinpoint exactly where the fluid is leaking from.
3. Top off the power steering fluid (carefully): Add only the correct type of power steering fluid (consult your owner's manual). Do not overfill.
4. Have the leak repaired professionally: A leaking pressure hose and/or the switch needs to be replaced by a qualified mechanic. Ignoring the problem will likely lead to more extensive and expensive repairs later. The switch itself is likely the culprit and may be replaceable separately from the entire hose.
Delaying repairs increases the risk of serious damage and potential safety hazards. Get your truck to a mechanic as soon as possible.
